As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) CABIN HEATER FAULTY. SMOKE IN CABIN. INVESTIGATION FOUND THE FORWARD VENT BLOWER INOPERATIVE DUE MOTOR BRUSH HANGUP. INSPECTION OF THE HEATER FOUND DISCOLORATION ON THE HEATER OUTER SHROUD. INTERNAL INSPECTION FOUND THE PAINT ON THE INSIDE OF THE HEATER SHROUD HAD CAUGHT FIRE RESULTING IN THE SMOKE IN THE CABIN. DUCT OVERTEMP SWITCH ALSO TRIPPED. (CASA NR 510001619)